Stopping Loose NukesDon't look to the air  dirty bombs are coming by land and by sea. That's why saving America's cities means using today's breakthrough technology to build an atomic wall.By Steven Johnson

FeaturesPower HousesTech execs and extreme jocks are making the world safe for plasma-screen shaving mirrors and Wi-Fi window shades. An exclusive tour of the ultimate wired homes. (Please wipe your feet at the door.)By Jack Boulware

The Planet SeekersAstronomy's brightest stars are racing to take the first
photograph of a world around another sun.By Richard Martin

The Sims OnlineWelcome to virtual reality with a white picket fence.
And kiss your chat room good-bye.By Robert Levine

DNA as DestinyGenetic analysis could soon reveal how you'll die  and when. Here's what it's like to take the first ever top-to-bottom gene test.By David Ewing Duncan

Why 6-Legged Bots RuleForget androids. Bio-guru Robert Full has seen the future
of robotics, and it's one part cockroach, one part Internet.By Tom McNichol

Surviving the Fiber-Optic Fire SaleIn telecom country, bankruptcies are up and assets are up
for grabs. Level 3's Jim Crowe surveys the wreckage and refuses to say die.By Frank Rose

The Hot ZoneChina's Pearl River Delta is exploding with tech
manufacturing and get-rich-quick dreams. It's a terrible, horrible, lawless frontier. And it works.By Arthur Kroeber